COIT20247: Database Design and Development - Computer Science - Report Writing Assignment Help

Computer Science Report Writing Assignment Help

1. a) Map the ERD, from the sample solution, into a set of relations in at least Third Normal Form (3NF). You must ensure that your relations meet 3NF. There is no need to show your working.
2. b) Select any two of your relations from the previous step, 1a), and perform the following for each of those two relations:

• List all the functional dependencies exist in the relation.
• Demonstrate that the relation meets Third Normal Form (3NF).

1. The primary key is StudentID which identifies a student. There will be one student name per Student ID because only one name is recorded for each student. Even though a student may have multiple addresses (e.g. a home address and a work address), the case study states that there is a need to record the home address only and hence there will be only one address for each student. There will be only one date of birth for each student. Thus, there are no repeating groups. Hence, this relation is in 1NF.
2. The primary key is StudentID. This is the only candidate key since Name is not guaranteed to be unique (two different students may have the same name). Address is also not guaranteed to be unique. This means that Student ID functionally determines every other attribute in the table. There is a single valued simple candidate key
3. Name cannot be used to functionally determine any other attribute in the table since two different students may have the same name; likewise for address and date of birth. Therefore there are no transitive dependencies in the table. Therefore it meets the requirements of first, second and third normal form.

• Create all the relations in a Microsoft Access database. Consider each attribute in every table and make appropriate choices regarding data types & sizes, indexes, required/not required and validation rules. Your choices should be appropriate for each attribute and should support data integrity. (Note: see the Data Integrity section below for specific data integrity requirements)
• Create relationships as appropriate. Enforce referential integrity for all appropriate relationships in the database. Apply cascade update and/or delete options wherever necessary.
• Review the default index created by Access for each table. You should ensure that the indexes follow the guidelines given in the unit textbook.
• Populate the database with sample data of your own. You must include sufficient sample data to test your queries and report. Please note that the expected result of query questions may depend on the actual sample data populated.

• The price and total price should be positive currency and expressed in 2 decimals only.
• The arrival time must be later than the departure time for a same flight.
• The airport name should not be null.
• The ReservationID must contain six characters. The first three characters have to be alphabets and the last three characters have to be numerical only.

1. Obtain a list of Customer ID, first name, last name and contact phone for customers who have flown or will fly on flights that have departed or will depart from Rockhampton.

2. List details of booking made for each airline. These details include airline code, reservation ID, flightNo, departure airport, arrival airport as well as the travel date.

3. List details of booking made for customers whose travel dates are the dates between 1st December 2018 and 15th December 2018. These details include customer name, reservation ID, flightNo, travel date and total price.

4. Find out how many flights of each airline has operated from Brisbane to Sydney everyday. Your result should include the airline code and corresponding number of flights.

5. Find out the details of the cheapest prices of flights from Brisbane to Sydney. Your result should include the flightNo, departure time, arrival time, and price.

• Create a query that lists all details needed for a report. If you are unable to formulate this query, then create a report that is based directly on the table(s). [Note: you will not be able to obtain full marks for the report creation if you base your report directly on the table(s) and some criteria are not met in your reports.]
• Use the report wizard to generate a basic report based upon your query [or the table(s) if you were unable to formulate the query].
• Once the report wizard finishes, switch to design view and rename the labels appropriately; for example, change the label ‘TravelDate’ to ‘Travel Date’.

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